“I recently interviewed someone whose cell phone rang during our interview. She hit the ‘ignore’ button, but the person kept calling back — and she didn’t put the ringer on mute. So our interview was interrupted four or five times by phone calls, and it just said to me, this isn’t a person who has good common sense,” says the website editor.

Moral of the story: Turn off your phone before you head in for an interview — don’t risk putting it on silent or vibrate. “If your cell phone rings during the interview, it shows me you aren’t a person with good attention to detail,” says the website editor. Not to mention it’s totally unprofessional.